EP0940989A3 - Video communication system and method - Google Patents

Video communication system and method Download PDF

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Publication number
EP0940989A3
EP0940989A3 EP99400481A EP99400481A EP0940989A3 EP 0940989 A3 EP0940989 A3 EP 0940989A3 EP 99400481 A EP99400481 A EP 99400481A EP 99400481 A EP99400481 A EP 99400481A EP 0940989 A3 EP0940989 A3 EP 0940989A3
Authority
EP
European Patent Office
Prior art keywords
video communication
designation data
reference picture
picture
communication system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99400481A
Other languages
German (de)
French (fr)
Other versions
EP0940989A2 (en
Inventor
Hideaki Nippon Telegraph and Kimata
Yasuhiro Nippon Telegraph and Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of EP0940989A2 publication Critical patent/EP0940989A2/en
Publication of EP0940989A3 publication Critical patent/EP0940989A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh

Abstract

The present invention relates to a video communication system and a video communication method along with a computer readable recording medium which records the video communication program. When encoding the input picture, the encoded reference picture selecting unit 4 switches the reference picture to the latest previously encoded picture depending on the designation contents by the continuous reference designation data and the specified reference designation data sent from the continuous reference picture designation data sending unit 27 and the specified reference picture designation data sending unit 29 on the receiving side.
EP99400481A 1998-03-02 1999-03-01 Video communication system and method Withdrawn EP0940989A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4909598 1998-03-02
JP4909598 1998-03-02
JP4909498 1998-03-02
JP4909498 1998-03-02

Publications (2)

Publication Number Publication Date
EP0940989A2 EP0940989A2 (en) 1999-09-08
EP0940989A3 true EP0940989A3 (en) 2003-10-29

Family

ID=26389446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400481A Withdrawn EP0940989A3 (en) 1998-03-02 1999-03-01 Video communication system and method

Country Status (2)

Country Link
US (1) US6621868B1 (en)
EP (1) EP0940989A3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6658618B1 (en) * 1999-09-02 2003-12-02 Polycom, Inc. Error recovery method for video compression coding using multiple reference buffers and a message channel
FR2809572B1 (en) * 2000-05-29 2002-08-16 Cit Alcatel VIDEO SOURCE CODING WITH MOTION PREDICTION AND BLOCK EFFECTS FILTERING
GB0021891D0 (en) 2000-09-06 2000-10-25 Wave Ltd M Adaptive video delivery
US6941343B2 (en) 2001-06-02 2005-09-06 Polycom, Inc. System and method for point to point integration of personal computers with videoconferencing systems
JP4355156B2 (en) 2002-04-16 2009-10-28 パナソニック株式会社 Image decoding method and image decoding apparatus
US7978799B2 (en) * 2005-07-15 2011-07-12 Nec Corporation Adaptive digital filter, FM receiver, signal processing method, and program
US7716551B2 (en) * 2005-12-07 2010-05-11 Microsoft Corporation Feedback and frame synchronization between media encoders and decoders
US7827467B2 (en) * 2006-01-04 2010-11-02 Nokia Corporation Method for checking of video encoder and decoder state integrity
US8559510B2 (en) * 2006-08-10 2013-10-15 Canon Kabushiki Kaisha Image decoding apparatus
CN101312536B (en) * 2007-05-24 2011-03-02 中兴通讯股份有限公司 Video coding method and apparatus for video transmission error control
JP4460011B2 (en) * 2008-05-27 2010-05-12 国立大学法人広島大学 Moving image distribution system, moving image distribution method, server in moving image distribution system, and user terminal in moving image distribution system
CN101360243A (en) * 2008-09-24 2009-02-04 腾讯科技（深圳）有限公司 Video communication system and method based on feedback reference frame
US9774869B2 (en) * 2013-03-25 2017-09-26 Blackberry Limited Resilient signal encoding
US9641867B2 (en) 2014-10-24 2017-05-02 Megachips Corporation Image processor
CN112929747B (en) * 2021-01-18 2023-03-31 北京洛塔信息技术有限公司 Video coding method, device and equipment based on network feedback and storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828392A2 (en) * 1996-09-04 1998-03-11 Oki Electric Industry Co., Ltd. Picture coder, picture decoder, and picture transmission system

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JPS62137983A (en) 1985-12-12 1987-06-20 Fujitsu Ltd System for restoring recorder
JPH01155790A (en) 1987-12-11 1989-06-19 Fujitsu Ltd Image coding control system
JP2602550B2 (en) 1989-06-01 1997-04-23 三菱電機株式会社 Inter-frame coding device
JPH08149474A (en) * 1994-11-17 1996-06-07 Hitachi Ltd Moving image decoder
JP3068002B2 (en) 1995-09-18 2000-07-24 沖電気工業株式会社 Image encoding device, image decoding device, and image transmission system
EP0849952B1 (en) * 1996-07-05 2005-12-07 Nippon Telegraph And Telephone Corporation Image transmission system, method and apparatus
JPH10191356A (en) 1996-12-27 1998-07-21 Oki Electric Ind Co Ltd Image encoder
JP3373130B2 (en) * 1997-03-24 2003-02-04 沖電気工業株式会社 Image decoding device
US6040879A (en) * 1997-04-21 2000-03-21 Samsung Electronics Co., Ltd. Method for decoding video data corrupted by channel noise

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828392A2 (en) * 1996-09-04 1998-03-11 Oki Electric Industry Co., Ltd. Picture coder, picture decoder, and picture transmission system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Recommendation H.263: Video coding for low bit rate communication", ITU-T DRAFT RECOMMENDATION H.263, XX, XX, February 1998 (1998-02-01), pages 1 - 167, XP002176560 *
FAERBER N ET AL: "EXTENSIONS OF ITU-T RECOMMENDATION H.324 FOR ERROR-RESILIENT VIDEO TRANSMISSION", IEEE COMMUNICATIONS MAGAZINE, IEEE SERVICE CENTER. PISCATAWAY, N.J, US, vol. 36, no. 6, 1 June 1998 (1998-06-01), pages 120 - 128, XP000777794, ISSN: 0163-6804 *
FUKUNAGA S ET AL: "Error resilient video coding by dynamic replacing of reference pictures", GLOBAL TELECOMMUNICATIONS CONFERENCE, 1996. GLOBECOM '96. 'COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY LONDON, UK 18-22 NOV. 1996, NEW YORK, NY, USA,IEEE, US, 18 November 1996 (1996-11-18), pages 1503 - 1508, XP010220270, ISBN: 0-7803-3336-5 *
KIMATA H ET AL: "STUDY ON ADAPTIVE REFERENCE PICTURE SELECTION CODING SCHEME FOR THE NEWPRED - RECEIVER-ORIENTED MOBILE VISUAL COMMUNICATION SYSTEM -", IEEE GLOBECOM 1998. GLOBECOM '98. THE BRIDGE TO GLOBAL INTEGRATION. SYDNEY, NOV. 8 - 12, 1998, IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, NEW YORK, NY: IEEE, US, vol. 3, 1998, pages 1431 - 1436, XP000805149, ISBN: 0-7803-4985-7 *

Also Published As

Publication number Publication date
US6621868B1 (en) 2003-09-16
EP0940989A2 (en) 1999-09-08

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